Support new double colon expressions in IDE code

compiler/frontend/src/org/jetbrains/kotlin/psi/KtDoubleColonExpression.kt

@@ -42,13 +42,13 @@ abstract class KtDoubleColonExpression(node: ASTNode) : KtExpressionImpl(node) {
     val doubleColonTokenReference: PsiElement
         get() = findChildByType(KtTokens.COLONCOLON)!!
 
-    fun setTypeReference(typeReference: KtTypeReference) {
-        val oldTypeReference = this.typeReference
-        if (oldTypeReference != null) {
-            oldTypeReference.replace(typeReference)
+    fun setReceiverExpression(newReceiverExpression: KtExpression) {
+        val oldReceiverExpression = this.receiverExpression
+        if (oldReceiverExpression != null) {
+            oldReceiverExpression.replace(newReceiverExpression)
         }
         else {
-            addBefore(typeReference, doubleColonTokenReference)
+            addBefore(newReceiverExpression, doubleColonTokenReference)
         }
     }
 

compiler/frontend/src/org/jetbrains/kotlin/psi/KtPsiUtil.java

@@ -421,7 +421,8 @@ public class KtPsiUtil {
         if (expression instanceof KtPostfixExpression ||
             expression instanceof KtQualifiedExpression ||
             expression instanceof KtCallExpression ||
-            expression instanceof KtArrayAccessExpression) {
+            expression instanceof KtArrayAccessExpression ||
+            expression instanceof KtDoubleColonExpression) {
             return maxPriority - 1;
         }